head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is execution, and it is a single point.

Execution · Pure Mechanics
Pioneering rhythm game where a rapping dog believes his way through button-cue raps.

Execution · Pure Mechanics
A button-mashing arcade sports game featuring track and field events.
PaRappa the Rapper leans Execution (Pure Mechanics); Track & Field II leans Execution (Pure Mechanics).
Track & Field II leans a little harder on execution, though the gap is small.
PaRappa the Rapper
Hitting button cues on beat is the whole game
Track & Field II
Button-mashing speed and timing define every event.
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
PaRappa the Rapper
No opponent; teachers follow set lines
Track & Field II
No opponent to out-predict, purely solo performance.
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
PaRappa the Rapper
Songs are fixed sequences
Track & Field II
Minimal randomness in event outcomes.
PaRappa the Rapper leans a little harder on optimization, though the gap is small.
PaRappa the Rapper
Freestyle scoring quirks for Cool rank
Track & Field II
Little strategy beyond raw execution speed.
A matching score does not mean a matching test. Two games can both sit at 10 on execution and demand completely different things of you - which is why the reasoning above matters more than the number beside it.